Extension rail



March 31, 1925. 1,531,810

w; F. PELTON EXTENSION RAIL Filed Oct. 15, @923 Z INVENTOR- l l z'llzamFPeZfmz BY. 6/3 W ATTOR Y Patented Mar. 31, 1925.

WILLIAM F. PELTON, OF

BROOKLYN, NEW YORK, assrenon or ONE-EAL! '10 JOHN YOUNG, or BROOKLYN,NEW YORK. l

nxrnnsron, RAIL.

Application filed October 15, 1933. Serial No. 668,518.

To all whom/it may concern:

Be it known that 1, WILLIAM F. PELTON, a citizen of the UnitedsStates,and residin at Brooklyn, in the county of Kings an State of New York,have invented certain new and useful Improvements in Extension Rails, ofwhich the following is a specification, such as will enable thoseskilled in the art to which it'appertains to make and use the same.

This invention relates to extension rails and particularly to rails forextension tables. and the object of the invention is to provide a simpleand yet strong and durable rail construction composed of sheet metal andbeing so interlocked as to form a strong and durable bearing'for theseparate rails when in an extended or contracted position, and with thisand other objects in View the invention consists in an extension rail orrails of the class and for the purpose specified which is simple inconstruction and efiicient in use and which is constructed ashereinafter described and claimed.

The invention is fully disclosed in the following specification, ofwhich the accompanying drawing forms a part, in which the separate partsof my improvement are designated by suitable reference characters ineach of the viewsgand in which Fig. 1 is a bottom plan view of myimproved extension rails indicating the method of their use;

Fig. 2 a side view of part of the construction shown in Fig. 1; and,

Fig. 3 a partial section on the line 3-3 of Fig. 1. I

My invention resides particularly in the provision of extension railsfor what are known as extension tables, and for the purpose ofillustrating one use of my invention. I have indicated in the drawing bydot and dash lines at 5 the top of an extension table, and in Fig. 3 ofthe drawing 6 represents the central stanchion or leg structure of thetable, and at 7 I have shown two extehsiomrails or extension rail units,each of the units being of similar construction and comprising a mainrail 8 secured to the stanchion or other support =6 by angle-iron plates9 or in any desired manner.

The rail 8 is fashioned from an elongated strip of sheet metal formedinto substantially rectangular form in cross section or comprisingdepending side walls 10 and 11,

the side wall 10 being pressed inwardly toform an elongated dove-tailgroove or socket 12 substantially centrally thereof, and the side wall11, or the lower end portion thereof is 'bent at right angles as shown,4

at 13 and extends beneath and serves to reinforce the dove-tail socketportion 12 of the wall 10.

Employed in connection with the rail 8 are two supplemental slidablerails 14 of similar construction, each of said rails'being fashionedfrom sheet metal and comprising a top plate 15 to which the movableportion of the table is secured by screws or in any other desiredmanner, and the rail 14 is provided with a depending plate 16 extendingat right angles to the plate 15, and centrally of the plate 16 is anoutwardly prQ ecting dove-tail member 17 which is adapted to fit in ando erate in the dovetail socket 12 of the rail 8, and the lower edgeportion of the rail 14 is preferably extended as shown at 18 to providea clearance between the same and the lower end portion of the side wall10 of the rail 8 as clearly shown in Fig. 3 of the drawing.

Secured to the outer face of the side plates 10 of each of the rails 8and at the opposite sides of the central portions of said rail are twostop members 19 and 20,

the members 19 being the innermost, while the members 20 are at theouter ends of said rail, and secured to the inner faces of the' parts 18of the rails 14 are members 21 adapted to engage the members 19-20 tolimit the inward and outward movements of the slide rails 14. In theconstruction shown the members 19, 20 and 21 are in the form ofrollersmounted u on pins and any .suitable stop maybe provi ed.

The distinctive features of my invontihn reside in the simplicity of theconstruction of the separate rails 8 and 14, and the strength of saidrails is provided by reason of the construction thereof. It will benoted that each of the main rails 8 are provided with a single socket 12opening outwardly through one face thereof, while the rails 14 are eachprovided with a single clove-tail member adapted to fit in and'operatein the sockets while the dove-tail socket portions 12 of the rails 8 arereinforced and strengthened by the flanges 13, it being understood thatthe weight of the extena i I by'the' walls 11 of the rails 8 through theflanges 13. Further, by reason of the sim plicity of the construction ofthe separate rails the same may be produced at nominal expense and, as amatter of fact, may be produced practically as cheap or even chezperthanwooden rails which are comm y employed, and each rail unit is ofsimilar form and construction.

, While I have shown and described a specific use of my improvedextension rail and have shown specific means for interlocking the searate rail members, I am not necessarily imited in these respects, and

various changes in and modifications of the construction herein shownand described may be made, within the scope of the appended claims,withoutdeparting from the spirit of my invention or sacrificing itsadvantages.

Having fully described my invention,

what I claim as new and by Letters Patent, is

1'. An extension rail of the class described comprising a main railmember fashioned from sheet metal and being substantially rectangular inform in cross section, one side face of said rail bein pressed inwardlyto form a dove-taile socket extending longitudinally! thereof, saidinwardly pressed side face bearing upon the opposite side face of saidrail and the last named side face of the rail being provided with a partextending beneath and serving to reinforce' the inwardly presseddove-tailed portion of said rail, and a supplemental rail memberfashioned from sheet metal and provided with a longitudinally projectingdove-tailed member fashioned to conform with and fit snugly'in thesocket of the main rail member.

v desire to secure side face bearing upon the opposite side face of saidrail and the last named side face of the rail being providedwith a partextending beneath and serving to reinforce inwardly pressed dove-tailedportions of said rail, a supplemental rail member fashioned from sheetmetal and provided with a longitudinally projecting dove-tailed memberfashioned to conform with and fit snugly in the socket of the main railmemher, and said last named rail member beingsubstantially L -sl1aped inform in cross section.

3. An extension rail of the class described comprising a main railmember composed ofsheet metal and substantially rectangular in form incross section and comprising top, bottom and side walls, and asupplemental rail member substantially L- shaped in form in crosssection, one side wall of the main rail member being pressed inwardly toform 'a dove-tailed socket extending longitudinally thereof, and theother side wall and the bottom wall of said mainrail member being injuxtaposition to and cooperating with said dove-tailed socket toreinforce and strengthen the same, and said supplemental railmember'being provided with a dove-tailed member fashioned to conformwith and fit snugly in the socket of the main rail member. I p Intestimony that I claim the foregoing as my inventlon Iv have signed myname this 11th day of October, 1923.

WILLIAM F5 rELToN.

